A route to sustainable aviation : a roadmap for the realization of aircraft components with electrical and structural multifunctionality

Jones, Catherine E. and Norman, Patrick J. and Burt, Graeme M. and Hill, Callum and Allegri, Giuliano and Yon, Jason and Hamerton, Ian and Trask, Richard S. (2021) A route to sustainable aviation : a roadmap for the realization of aircraft components with electrical and structural multifunctionality. IEEE Transactions on Transportation Electrification. ISSN 2332-7782

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    Abstract

    Increased electrification of aircraft power systems has been widely presented as a route towards meeting environmental and emissions targets for aircraft performance, via more-electric aircraft and future hybrid-electric aircraft concepts. In parallel, the superior mechanical performance of carbon fibre reinforced polymer (CFRP) has resulted in its increasing use for aircraft structures. The relatively low electrical conductivity of CFRP compared to traditional aluminium structures and copper conductors, limits the use of structural CFRP structures as electrical elements, so separate systems are needed. This adds structural mass and volume to a system, negating some of the benefits of using CFRP. Closer integration of the composite structure and electrical power system, with an ultimate goal of achieving components with multifunctionality (combined thermal, electrical and structural functionality), offers a route towards the light-weighting of these systems, thus supporting improvements in aircraft performance. This paper presents a roadmap to achieve this multifunctionality, supported by the combination of introducing definitions for different levels of multifunctionality, associated design thresholds and trades between the electrical power system and CFRP materials/structures. Existing multifunctional electrical-thermal-structural CFRP-based solutions are contextualized within this roadmap. This enables realization of viable routes for developing multifunctional systems for the strategic focus of future research efforts.

    ORCID iDs

    Jones, Catherine E. ORCID logoORCID: https://orcid.org/0000-0001-7524-5756, Norman, Patrick J. ORCID logoORCID: https://orcid.org/0000-0001-5577-1281, Burt, Graeme M. ORCID logoORCID: https://orcid.org/0000-0002-0315-5919, Hill, Callum, Allegri, Giuliano, Yon, Jason, Hamerton, Ian and Trask, Richard S.;